Thank you Lara..I know about depression following a heart attack...the problem here is that both of them have accepted that as the reason...the only reason for his depression. When I suggested to him, in a restaurant no less, that he was grieving the loss of a job, a job he loved...he teared up and shook his head. His wife, a dear woman, quickly said oh no, it's his heart attack....as if it's easier to accept depression when it's only caused by a physical problem. Depression is depression and I am so worried about him.